[Bug] Decorations cannot appear after inline completions

Reproducible in vscode.dev or in VS Code Desktop?

• Not reproducible in vscode.dev or VS Code Desktop

Reproducible in the monaco editor playground?

• Not reproducible in the monaco editor playground

Monaco Editor Playground Link

https://microsoft.github.io/monaco-editor/playground.html?source=v0.41.0#XQAAAAITAwAAAAAAAABBqQkHQ5NjdMjwa-jY7SIQ9S7DNlzs5W-mwj0fe1ZCDRFc9ws9XQE0SJE1jc2VKxhaLFIw9vEWSxW3yscw23CAaAEiAI2noA0ZIx1yl-tBpXaaHrtjz_aQNHMi1VW1WL6AmZwUI5WjXxJSg9eUHcQ72PxYdN3-ekwIJ6Js6TD5RjHpQSXsXYkYn30K6D_l2kbnVOiwGhnG6UMTgi3FecbY79jvb6OBgwAWDAWVlU-7bIIYVBXjm0AQD71kO3gMP3HFyGIpeA5ZkOv-r63rLs05xyazNinJ1fPYzyY3MlygftjxCu22fGUglF6G1BwwUXql6FWOUf2L9U5qEAQI-wtzlVSyD1zaN7D_-fmeInMnnoRsknWjySMM_UItiSoa-p3vE2nC_WY6eiEKg7dYOkvMsjno-kLy0Vd6A9iDcH7VTCyXmW5cR3TsP-t7B09_glnijLuo3XYFKzw1tP6ijSrSotV9aZQkWH4Qw_w-Vxsx-uJSYCGuUYOREespo3WYBLba2YgRcnn7__jP3i9rn10GOMc_OU32rC72Q1-53UJftEC7r1BW2RdDDJF2dkFsN5TvIi-qUDthEdlhK1G49FJKM_ELbW-uRi1Lbaepn71YnvztHYF2Hy9ZYC0m3Z-7rThYypew3__pRMge

Monaco Editor Playground Code

const myEditor = monaco.editor.create(document.getElementById("container"), {
	value: '{\n\t"dependencies": {\n\t\t\n\t}\n}\n',
	language: "json",
});

monaco.languages.registerInlineCompletionsProvider("json", {
	provideInlineCompletions: function (model, position, context, token) {
		return {items: [{insertText: 'foo'}]};
	},
	freeInlineCompletions: function (completions) {
	},
	handleItemDidShow: function (completions, item, updatedInsertText) {
		console.log("Item shown: ", item);
		let range = {'startColumn': 0, 'endColumn': 100, 'startLineNumber': 3, 'endLineNumber': 3};
		let decoration = {'range': range, 'options': {'after': {'content': 'bar'}}};
		myEditor.deltaDecorations([], [decoration]);
	}
	});

Reproduction Steps

1. Go to line 3
2. Hit space to trigger an inline completion
3. The inline completion "foo" and the decoration "bar" both appear

Actual (Problematic) Behavior

The decoration "bar" appears before the inline suggestion "foo" despite the decoration having an endColumn of 100

Expected Behavior

I expect the decoration to appear after the inline suggestion

Additional Context

No response

Start with the linked Monaco Editor playground and its inline completions provider, reproducing the interaction between the inline suggestion and the after decoration. Trace how inline completions and decorations are positioned together; done means the decoration appears after the inline suggestion in the supplied reproduction without regressing normal decoration placement.